Comparative evaluation of fermentative hydrogen production using Enterobacter cloacae and mixed culture: Effect of Pd (II) ion and phytogenic palladium nanoparticles

Mohanraj, Sundaresan; Anbalagan, Krishnasamy; Kodhaiyolii, Shanmugam; Pugalenthi, Velan

doi:10.1016/j.jbiotec.2014.10.012

Cited by 69 publications

(20 citation statements)

References 28 publications

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“…17 A few studies have reported on improved H 2 yield and more substrate utilization by supplementing production media with metal nanoparticles. 2,3,24,25 In the present study a clean method is applied for the synthesis of FeNPs using water extract of the S. cumini leaf. The synthesized FeNPs is used as media supplement to enhance the dark fermentative H 2 production by the isolated strain DH-89 in glucose-based batch fermentation.…”

Section: Introductionmentioning

confidence: 99%

Phytosynthesized iron nanoparticles: effects on fermentative hydrogen production by Enterobacter cloacae DH-89

et al. 2015

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In recent years the application of metal nanoparticles is gaining attention in various fields. The present study focuses on the additive effect of 'green' synthesized iron nanoparticles (FeNPs) on dark fermentative hydrogen (H 2) production by a mesophilic soil bacterium Enterobacter cloacae. The FeNPs were synthesized by a rapid green method from FeSO 4 using aqueous leaf extract of Syzygium cumini. The synthesized FeNPs showed a characteristic surface plasmon resonance peak at 267 nm. The transmission electron microscopy images confirm that the formation of FeNPs was mainly porous and irregular in shape, with an average particle size of 20-25 nm. The presence of iron (Fe) in the synthesized FeNPs was confirmed by energy-dispersive X-ray spectroscopy. The comparative effect of FeSO 4 and FeNPs on batch fermentative H 2 production from glucose was investigated. The fermentation experiments reveal that the percentage and yield of H 2 in FeNPs supplementation were increased significantly than the control (no supplementation) and FeSO 4 containing media. The maximum H 2 yield of 1.9 mol mol −1 glucose utilized was observed in 100 mg l −1 FeNPs supplementation, with twofold increase in glucose conversion efficiency. Thus, the result suggests that FeNPs supplementation in place of FeSO 4 could improve the bioactivity of H 2 producing microbes for enhanced H 2 yield and glucose consumption.

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Section: Introductionmentioning

confidence: 99%

Phytosynthesized iron nanoparticles: effects on fermentative hydrogen production by Enterobacter cloacae DH-89

et al. 2015

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“…NPs can also significantly influence the microbial metabolic activity for H 2 production through similar phenomenon under aerobic condition by efficient transfer of electrons [44]. Thus, a positive effect of various NPs, including silver (Ag), gold (Au), Copper (Cu), Fe, Ni, Palladium (Pd), Silica (SiO 2 ), Titanium (Ti), activated carbon, carbon nano-tubes (CNTs) and composite were observed on BHP [19,29,30,[44][45][46][47][48][49][50][51]. Briefly, these NPs might be stimulating BHP by their surface and quantum size effect [49].…”

Section: Influence Of Nanoparticles On Biohydrogen Productionmentioning

confidence: 99%

“…However, the biocompatibility of metal particles is a primary concern for the H 2 producers. Further, the use of biologically synthesized NPs appeared to be a more promising approach than the physical and chemically synthesized NPs [28][29][30]. In this article, we have described the potential of different types of NPs and their compositions on the BHP by pure and mixed cultures using sugars and biowastes as a feed.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles in Biological Hydrogen Production: An Overview

2017

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Biological hydrogen (H) production enhancement through the use of nanoparticles (NPs) supplement in the media is being recognized as a promising approach. The NPs, including those of metal and metal oxides have shown a significant improvement in the BHP. A number of organisms as pure or mixed cultures can produce H in presence of NPs from pure sugars and biowaste as a feed. However, their H production efficiencies have been found to vary significantly with the type of NPs and their concentration. In this review article, the potential role of NPs in the enhancement of H production has been assessed in dark- and photo-fermentative organisms using sugars and biowaste materials as feed. Further, the integrative approaches for commercial applications of NPs in BHP have been discussed.

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“…The effects of Cu-NPs and CuSO 4 on the biohydrogen production of E. cloacae and C. acetobutylicum were carried out in a 250 mL bottle containing 200 mL of fermentation medium, as mentioned in our previous report [17]. In brief, the following compositions were used to prepare the medium: (in g/L) 1.5, KH 2 PO 4 ; 3.2, Na 2 HPO 4 ; 0.5, NH 4 Cl; 0.8, MgCl 2 ; 1.0, yeast extract; 0.5, meat extract; 0.5, peptone with the optimum concentration of glucose, 10.0 for E. cloacae, and 7.5 for C. acetobutylicum.…”

Section: Effects Of Cu-nps and Cuso 4 On Biohydrogen Productionmentioning

confidence: 99%

Effects of phytogenic copper nanoparticles on fermentative hydrogen production by Enterobacter cloacae and Clostridium acetobutylicum

Mohanraj

Anbalagan

Rajaguru

et al. 2016

International Journal of Hydrogen Energy

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Comparative evaluation of fermentative hydrogen production using Enterobacter cloacae and mixed culture: Effect of Pd (II) ion and phytogenic palladium nanoparticles

Cited by 69 publications

References 28 publications

Phytosynthesized iron nanoparticles: effects on fermentative hydrogen production by Enterobacter cloacae DH-89

Phytosynthesized iron nanoparticles: effects on fermentative hydrogen production by Enterobacter cloacae DH-89

Nanoparticles in Biological Hydrogen Production: An Overview

Effects of phytogenic copper nanoparticles on fermentative hydrogen production by Enterobacter cloacae and Clostridium acetobutylicum

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